In the growing effort to combat robocalls, T-Mobile and Comcast announced this morning that they are the first to allow cross-network protection for their customers. This is a big step in the fight over call verification as robocallers continue to attack our phone lines with spam.

T-Mobile and Comcast are utilizing the STIR/SHAKEN standards to verify/authenticate calls that occur between their networks. Starting today, T-Mobile customers will get that verification from calls that originate...